DE415431C - Process for marking silver halide emulsions on any type of substrate by means of color printing - Google Patents

Process for marking silver halide emulsions on any type of substrate by means of color printing

Info

Publication number
DE415431C
DE415431C DEG60837D DEG0060837D DE415431C DE 415431 C DE415431 C DE 415431C DE G60837 D DEG60837 D DE G60837D DE G0060837 D DEG0060837 D DE G0060837D DE 415431 C DE415431 C DE 415431C
Authority
DE
Germany
Prior art keywords
marking
substrate
silver halide
halide emulsions
type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEG60837D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goerz Photochemische Werke G M
Original Assignee
Goerz Photochemische Werke G M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goerz Photochemische Werke G M filed Critical Goerz Photochemische Werke G M
Priority to DEG60837D priority Critical patent/DE415431C/en
Application granted granted Critical
Publication of DE415431C publication Critical patent/DE415431C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C11/00—Auxiliary processes in photography
    • G03C11/02—Marking or applying text

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

Verfahren zur Beschriftung von Silberllalogenemulsion auf beliebigen Schichtträgern rlnrnh Farhanfrlrnnlz Wenn man photographische Schichtträger durch einen Farbaufdruck charakterisieren will, dann tritt die Schwierigkeit auf; einen Farbstoff zu finden, welcher sowohl bei der Entwicklung des Schichtträgers die Bäder und damit die Schicht nicht verdirbt und welcher gleichwohl gegen den Einfluß der Bäder so standhaft ist, daß die Markierung auch nach der Entwicklung und Fixierung deutlich sichtbar bleibt.Process for marking silver alum emulsion on any Supports rlnrnh Faranfrlrnnl If you look through photographic supports wants to characterize a color print, then the difficulty arises; a Find dye, which both in the development of the layer support the baths and so that the layer does not spoil and which nonetheless against the influence of the Baths is so steadfast that the marking even after development and fixation remains clearly visible.

Gemäß vorliegender Erfindung wird diese Schwierigkeit dadurch überwunden, daß die Sichtbarkeit der Beschriftung der Emulsion nach der Entwicklung des Schichtträgers nicht sowohl auf den die Markierung bewirkenden Farbaufdruck selbst gestellt wird als vielmehr auf die Wirkung desselben auf die Silberemulsion. Dadurch wird die Möglichkeit gegeben, mit sehr dünnen Farbstoffen zu arbeiten, welche wegen der geringen Farbstoffmenge, die dadurch auf den Schichtträger gebracht wird, nicht die Gefahr einer schädlichen Verunreinigung der Bäder mit sich bringen und welche gleichwohl zu dem gewünschten Erfolg führen, daß, obwohl der dünne Farbauftrag durch die Behandlung des Schichtträgers mit den Bädern vollkommen herausgewaschen wird, nach der Behandlung ein deutlich sichtbares Bild, nämlich das entwickelte Silberbild des Farbauftrages, auf dem Schichtträger zurückbleibt.According to the present invention, this difficulty is overcome by that the visibility of the lettering of the emulsion after the development of the support is not placed both on the color imprint itself causing the marking rather than its effect on the silver emulsion. This will make the Possibility to work with very thin dyes, which because of the low The amount of dye that is applied to the substrate does not pose a risk cause harmful contamination of the baths and which at the same time lead to the desired success that, although the thin application of paint by the treatment The substrate is completely washed out with the baths after the treatment a clearly visible image, namely the developed silver image of the paint application, remains on the substrate.

Als für die Erreichung des Zweckes besonders geeigneter Farbstoff hat sich Methylenblau erwiesen, und zwar in einer Verdünnung von einem Teil Methylenblau in etwa tausend Teilen Wasser. Um das Methylenblau auf der lichtempfindlichen Gelatineschicht des Schichtträgers besser zu fixieren, empfiehlt es sich, dasselbe anstatt in rein wässeriger Lösung in schwach saurer Lösung anzuwenden, beispielsweise in einer lho Normalschwefelsäurelösung.As a dye particularly suitable for achieving the purpose methylene blue has been found to be in a dilution of one part of methylene blue in about a thousand parts of water. Around the methylene blue on the photosensitive gelatin layer To fix the support better, it is advisable to use the same instead of pure aqueous solution to be used in weakly acidic solution, for example in a lho Normal sulfuric acid solution.

Man kann den Aufdruck dieser Farblösung auf die Halogensilberemulsion vermittels eines mit der Farblösung benetzten Gummistempels vornehmen. Um die Haftung der Farblösung an der Schicht zu verbessern, empfiehlt es sich, der Farblösung einen Klebstoff, z. B. etwas Dextrin, zuzusetzen. Gute Resultate sind mit einer Farblösung erzielt, welche auf iooo Gewichtsteile Lösung etwa 5o Gewichtsteile Dextrin enthält.You can have this color solution printed on the silver halide emulsion using a rubber stamp moistened with the color solution. About liability To improve the color solution on the layer, it is advisable to use one of the color solution Glue, e.g. B. add some dextrin. Good results are with a color solution achieved, which contains about 50 parts by weight of dextrin per 100 parts by weight of solution.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Beschriftung von Silberhalogenemulsion auf beliebigen Schichtträgern durch Farbaufdruck, dadurch gekennzeichnet, daß als Druckfarbe für die Markierung eine solche gewählt wird, welche in den photographischen Bädern löslich ist und nach der Entwicklung und der damit verbundenen Entfernung des Farbbildes ein Silberbild zurückläßt. PATENT CLAIMS: i. Process for marking silver halide emulsions on any substrate by color printing, characterized in that as Printing ink for the marking is chosen such which is used in the photographic Baths is soluble and after development and associated removal of the color image leaves a silver image. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß als Druckfarbe Methylenblau vorzugsweise in schwach saurer Lösung benutzt wird.2. The method according to claim i, characterized characterized in that methylene blue is preferably used as the printing ink in a weakly acidic solution is used.
DEG60837D 1924-03-04 1924-03-04 Process for marking silver halide emulsions on any type of substrate by means of color printing Expired DE415431C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG60837D DE415431C (en) 1924-03-04 1924-03-04 Process for marking silver halide emulsions on any type of substrate by means of color printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG60837D DE415431C (en) 1924-03-04 1924-03-04 Process for marking silver halide emulsions on any type of substrate by means of color printing

Publications (1)

Publication Number Publication Date
DE415431C true DE415431C (en) 1925-06-20

Family

ID=7132564

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG60837D Expired DE415431C (en) 1924-03-04 1924-03-04 Process for marking silver halide emulsions on any type of substrate by means of color printing

Country Status (1)

Country Link
DE (1) DE415431C (en)

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